In this study, we report an investigation of the fabrication and characterization of film-based organicelectroluminescence (OEL). The film-based OEL was fabricated by deposition of 4,4′,4′′-tris[2-naphthyl(phenyl)amino] triphenylamine (2T-NATA), tris (8-hydroxyquinolinato) aluminium (Alq3), LiF, and Al on the polyethylene naphthalate (PEN) film. The film-based OEL indicates the green emission, which is due to the fluorescence of Alq3, and highest luminance reached 4408 cd m-2. Additionally, it was also confirmed that film-based OEL indicated the green emission in the curved state. From these results, we concluded that the film-based OEL functioned as a flexible OEL.